Window-ventilator.



" IsInoR romnnan'rz, or 1m Specification of Letters Patent.

IISAS CITY, MISSOURI, ASSIG-NOR TO WILLIAM MASTERS, OF KANSAS CITY,MISSOURI. I

wnmow-vENTILA'ron.

Patented May 9, 1911.

Application filed February 2, 1910. Serial No. 541,611.

To all whom it may concern:

Be it known that I, Ismon POMERANTZ, a citizen of the United States,residing at ansas City, inthe county of Jackson and tate of Missouri,have invented certain new nd useful Improvements in Window-Ventilators,of which the following is a specifi- .cation.

This invention relates to window ventilators, and one of the principalobjects of the same is to provide slmple, reliable and efficient meansto properly ventilate rooms in buildings without creating a draft and toprovide means whereb the ventilating openmgs may be opened, 0 osed oradjusted as to ventilating area.

Another object of the invention is to dprovide an adjustable ventilatorfor win which will screen the air before it is admitted to the roomsandwhich can be adjusted to admit more or lessfiltered air.

Still another object of the invention is to provide a simple ventilatingsystem to be applied to window sashes which will-be entirely out of theway, which can be removed from the sash for cleaning purposes, and whichwill not permit'a direct draft through p the room.

These and other objects may be attained by means of the constructionillustrated in the accompanying drawing, in which,

Figure 1 is a vertical sectional view through the bottom rail of a sashand showing a ventilator secured therein and made'in accordance with myinvention. Fig.2 is a detail elevation looking at the inner side of theventilator which is shown broken away at one end. Fig. 3 is a similarview looking at the ventilator fromsthe outside. Fig. 4 is a detailelevation looking at the insideof the ventilator, portions being brokenaway.

Referring to Figs. 1, 2 and 3 of the drawing, the numeral 1 designatesthe lower sash rail, which is provided with an opening extendingpartially across the same to receive the ventilator. Mounted in theopening in the sash rail 1 is a metal frame 2 provided with a series ofrectangular openings 3, said frame having horizontal upper and lowerflanges 4 and 5. Projecting inward from the flanges 4 and 5 are bars 6and 7 provided with rack teeth 8 on their inner edges. The frame 2 isprovided with aslot 9 near the center therein and extending through thisslot is theshank of a button or knob 10, said OWS shank being'connectedto a. sliding plate 11 provided with a series of rectangular openings12, similar to the openings 3 in the frame 2. Connected to the plate 11are small pinions 13 at the upper and lower edges thereof, said pinionsenga ing the teeth 8 of the rack bars 7. The frame 2 and the slidingplate 11 are located at the inner side of the sash rail, and a frame 14is' located at the outer side of the sash rail, said frame being'provided with an upwardly extending flange 15 at the bottom and adownwardly extending flange 16 at the top. Secured to the flange 16 is ahood or shield 17 designed to prevent a direct shaft through theventilator into the room,

said hood being opened at the bottom to permit the air to enter frombelow, and to pass into the room. A fine wire screen 18 is secured tothe flanges 15 and 16 to filter the air as it passes through theventilator. A removable screen 19 is secured between the frames 2 and14. This ventilator is removably held in place within the opening in thesash rail by means of cleats 20 and the frames 2 and 14 are mountedbetween upper and lower lates 21.

will e understood that. a ventilator slmilar to that already describedis also secured to the upper sash rail and in use the sliding plate 11may be adjusted in both the upper and lower ventilator to permit air toenter the lower ventilator and find an eirlt through the upperventilator. The shding plate 11 may be moved by means of the knob 10 toregulate the required amount of air to enter the room. As shown in Fig.4 the frame 22 is substantially identical with the frame 2, exceptingthat the rack bar 23 is secured to the plate 22 instead of being formedintegral therewith.

The sliding plate 24 is substantially identical with the plate 11 and isoperated by means ofthe knob 25 in the same manner. The .frame 26 isprovided with an inclined portion 27 in which is secured a screen 28.Immediately back of the screen 28 is a deflector 29 which prevents adirect draft through the ventilator and serves the same purpose as thehood 17. Above the deflector 29 is a screen 30 which prevents smallparticles floating in the air from entering the room.

From the foregoing it will be obvious that a ventilator made inaccordance with my Havin thus fully described the inventionwhat is caimed as new is:

l. A window ventilator comprising in combination with a sash rail havingan opening therein, frames removably mounted in said opening and havinginturned flanges at their inner sides and provided with openings intheir outer faces, a screen removably mounted between said frame andheld in position by said flanges, a screen covering the opening in theouter frame, and a plate slidable back of the front face of the for-Ward frame, for the purpose set forth.

2. A window ventilator comprising in combination with a sash rail having.an opening therein, upper andlower plates fixed in said opening, anouter frame'havmg 1nturned flanges engaging said plates and having ascreened'opening in its outer face, a plate, having a screened opening,fitting in said rail opening and engaglng the upper and lower plates andabutting against the inner ends of said frame flanges, an inner framealso located between said plates and having flanges abuttingthereagainst and against said screened plate, said last named inpresence of frame having openings therein, a plate slidable back of saidlast named opemngs and having openings adapted for registrationtherewith, and means for actuating said plate from the exterior of theinner frame.

3. A window ventilator comprising, in

combination with a sash rail having an opening therein, upper and lowerplates fixedin said opening, inner and outer frames havin flanges seatedagainst said plates and provided with openings, a removable plateseated'between said frame flanges and provided with a screened opening,and a .hood' fixed on the outside of the ventilator and having adownwardly opening mouth, subs'tantially as andfor the purpose setforth.

4. A window ventilator comprising a frame mounted in an opening in asash rail, said frame being provided with ventilating openings, a plateprovided with openings and mounted to slide adjacent to the frame, rackbars and pinions on which the sliding plate is, movable, a screen withinthe frame and a hood or deflector for preventing a direct draft throughthe ventilator.

5. A ventilator mounted in a sash rail and comprising a frame havingventilating openings therein, a plate carryin pinions, rack bars on theframe engag pinions, means for moving the sliding plate laterally, ascreen within the ventilator and a a hood or deflector for preventingdirect draft through the ventilator. I

In testimony whereof I afiix my signature two witnesses.

ISIDOR POMERANTZo Witnesses:

W. H. ST INSMAN, H. F. Rose.

by said

